Originally Posted by SEVEN (Post 8854308)

I ordered some swap headers, BH13173, but was told today they have been discontinued and no alternative is available. Checked Holley's website and I don't see any long tube headers listed for LS swaps into 67-72 trucks. Already ordered the crossmember and exhaust system to ensure it all fit, but now no headers. Anyone know why?

Originally Posted by SEVEN (Post 8856764)

Good to know, thanks.

Will the existing exhaust system and crossmember designed to work with the old, work with the new design?

Does the new design offer clearance for wide frames, where old design apparently did not?

Can you pass along the new part number, as I'll order it when it's available.

Originally Posted by AliB (Post 8862612)

Did any managed to install the 3" or 2.5" exhaust system? would love to hear it running before getting one. I plan on doing the whole system engine stands, trans cross member, and trailing arm cross memeber.

Originally Posted by rin68 (Post 8862915)

I've got a 5.3 build that was finished before these Holley parts were out. It has the GM muscle car pan on it. Will that work with the Holley LS swap parts or will I need to swap to a 302-2 pan?

(I've got the full Holley LS swap system going in my 69 Camaro and it's great stuff, thanks for the all the work that has gone in to these great systems)

Originally Posted by Marine15Z28 (Post 8873037)

I installed the Holley Black hearts mounts with a stock C10 trans crossmember and Speed Engineering headers. All fit well, driver side 1/8” grind on the bracket but didn’t need to. Stock truck pans fits fine just a little rub on the steering shaft and below crossmember, if you’re not lowering the truck you’ll be ok. I can shim the brackets up 1/8” to 3/16 and it’ll be fine. But I’ll probably switch to CTSV oil pan because I have it. The bolts that came with the brackets don’t even cover the brackets well. Heard someone here they now provide some diffrent mount bolts.

Originally Posted by chad64chevy (Post 8876735)

Toddoky- the instructions show the hanger for the mufflers bolting to the crossmember! Does this come in the kit? Along with the other hangers not show with the kit??
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Originally Posted by 1971Stepside (Post 8805473)

I purchased this kit (2.5") and wanted to give my thoughts for those thinking about it. My set up is a little different than all of the Holley parts recommended as they were not available when I was installing everything. I have a 6.0 sitting on POL stands. 4L80e trans with Dirty Dingo cross member. Speed Engineering Long Tube headers. I had already cut the holes in my trail arm cross member and they are not exactly where Holley have theirs as mine sit closer to the frame rails, but are 4" holes.

The kit fits amazingly well from the rear bumper to the h-pipe. The quality of the kit and the brackets are top notch. I highly recommend the kit over having a shop build you a stainless system.

The downside, if you want to call it that, is hooking up the H-pipe section to the headers. The headers sit lower than what the pipe is. I ended up having a local shop fabricate up some pipe to make the connection. I wasn't too bad to have done, but I could not find a local shop that could do mandrel bends, so I had to go with the old press bends. At some point I will put cut-outs in and have mandrel bends installed.

If anyone wants pics of my install let me know.

Originally Posted by toddoky (Post 8876910)

Yes, all the required hangers are included in the kit. If they are not in your kit, you'll need to place a call to Holley Customer Service to get it remedied.

Originally Posted by chad64chevy (Post 8877229)

Have you guys got anywhere with the other c10? I have a 66 c10 what 2.5” kit number would be a better fit over the ones for 67-72?? Also I have the cpp bend pan hard bar that runs from the driver side frame to the passenger side trailering arm! Will these kit clear the bar??
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Originally Posted by toddoky (Post 8877411)

The exhaust system fitment is the same on the 65-72 C10's; the 63 and 64 models will need to have the rear track bar frame bracket relocated further back on the frame rail to where it is located on the 65-72 truck frames. Compatibility with the CPP bar shouldn't an issue as I validated the fitment of one during the prototyping of the exhaust systems. I don't recall whether is was of bent or straight geometry however. This image shows the clearance path I designed into the passenger side tailpipe to allow clearance for aftermarket track bars that attach to the bottom of the trailing arm.

Originally Posted by chad64chevy (Post 8883549)

What is the eta for the BH13194 kit? Holley website says middle of May!
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Originally Posted by my kids toy (Post 8900010)

Seeing we can not purchase these can you tell us what mandrel bends for the over axle tail pipes we need to buy so we can make our own ?
I have been on the waiting list with Holley for 2 estimated shipping dates now and they never ship and I have waited months now for one and the next round is almost 5 months out, they told me before that 5 were in the works and I was # 3 on the list but they never get shipped and this is the last piece of my build that I needed to buy.